Home / 257,273.95-385,948.28-79,795.25

Finding the Fourth Proportional to 257,273.95, 385,948.28 and 79,795.25

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Solution

The fourth proportional to 257,273.95, 385,948.28 and 79,795.25 is: 119,704.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,273.95 : 385,948.28 = 79,795.25 : x
  2. Step 2: Convert to fraction form
    257,273.95/385,948.28 = 79,795.25/x
  3. Step 3: Cross multiply
    257,273.95x = 385,948.28 × 79,795.25
  4. Step 4: Simplify right side
    257,273.95x = 30,796,840,654.03
  5. Step 5: Solve for x
    x = 30,796,840,654.03/257,273.95
  6. Step 6: Final answer
    x = 119,704.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.